Specifications

Polycom, Inc. C–1
C
Polycom HDX 9000 Series
Specifications
Back Panel Information
Refer to the Administrator’s Guide for Polycom HDX Systems at
www.polycom.com/videodocumentation for back panel views of Polycom
HDX systems and for details about the various connections available on each
Polycom HDX back panel connector.
Inputs/Outputs
Audio Specifications
Characteristic Value
Maximum Input Level
0 dBFS for Audio Input 4 +12 dBV (4.0 V
RMS
), ±1 dB
Maximum Input Level
0 dBFS for Audio Input 3 (VCR/DVD) +12 dBV (4.0 V
RMS
), ±1 dB
Maximum Input Level
0 dBFS for Audio Input 1 (External
Input, Line Level)
+12 dBV (4.0 V
RMS
), ±1 dB
Maximum Input Level
0 dBFS for Audio Input 1 (External
Input, MIC Level)
Not supported on Polycom HDX 9006
systems.
-20 dBV, ±1 dB
Input Impedance
Audio Input 4 Differential 20 k, ±5% Ohms